# This file is part of the OpenMV project. # # Copyright (c) 2023 Ibrahim Abdelkader # Copyright (c) 2023 Kwabena W. Agyeman # # This work is licensed under the MIT license, see the file LICENSE for details. # # ST7701 LCD controller driver. import time class ST7701: DSI_CMD2_BKX_SEL = const(0xFF) DSI_CMD2_BK0_SEL = const(0x10) DSI_CMD2_BK1_SEL = const(0x11) DSI_CMD2_BKX_SEL_NONE = const(0x00) DSI_CMD2_BK0_PVGAMCTRL = const(0xB0) DSI_CMD2_BK0_NVGAMCTRL = const(0xB1) DSI_CMD2_BK0_LNESET = const(0xC0) DSI_CMD2_BK0_PORCTRL = const(0xC1) DSI_CMD2_BK0_INVSEL = const(0xC2) DSI_CMD2_BK1_SECTRL = const(0xE0) DSI_CMD2_BK1_NRCTRL = const(0xE1) DSI_CMD2_BK1_SRPCTRL = const(0xE2) DSI_CMD2_BK1_CCCTRL = const(0xE3) DSI_CMD2_BK1_SKCTRL = const(0xE4) DSI_CMD2_BK1_VRHS = const(0xB0) DSI_CMD2_BK1_VCOM = const(0xB1) DSI_CMD2_BK1_VGHSS = const(0xB2) DSI_CMD2_BK1_TESTCMD = const(0xB3) DSI_CMD2_BK1_VGLS = const(0xB5) DSI_CMD2_BK1_PWCTLR1 = const(0xB7) DSI_CMD2_BK1_PWCTLR2 = const(0xB8) DSI_CMD2_BK1_DGMLUTR = const(0xB9) DSI_CMD2_BK1_SPD1 = const(0xC1) DSI_CMD2_BK1_SPD2 = const(0xC2) DSI_CMD2_BK1_MIPISET1 = const(0xD0) DCS_SOFT_RESET = const(0x01) DCS_EXIT_SLEEP_MODE = const(0x11) DCS_SET_DISPLAY_ON = const(0x29) def __init__(self): pass def init(self, dc): self.dc = dc # Soft-reset dc.dsi_write(DCS_SOFT_RESET) time.sleep_ms(200) # Exit sleep mode dc.dsi_write(DCS_EXIT_SLEEP_MODE) time.sleep_ms(800) # Select bank 0 dc.dsi_write(DSI_CMD2_BKX_SEL, b"\x77\x01\x00\x00\x10") # Display Control setting dc.dsi_write(DSI_CMD2_BK0_LNESET, b"\x63\x00") dc.dsi_write(DSI_CMD2_BK0_PORCTRL, b"\x11\x02") dc.dsi_write(DSI_CMD2_BK0_INVSEL, b"\x01\x08") # dc.dsi_write(0xCC, b"\x18") # Gamma cluster settings dc.dsi_write( 0xB0, b"\x40\xc9\x91\x0d\x12\x07\x02\x09\x09\x1f\x04\x50\x0f\xe4\x29\xdf" ) dc.dsi_write( 0xB1, b"\x40\xcb\xd0\x11\x92\x07\x00\x08\x07\x1c\x06\x53\x12\x63\xeb\xdf" ) # Select bank 1 dc.dsi_write(DSI_CMD2_BKX_SEL, b"\x77\x01\x00\x00\x11") # Power control settings dc.dsi_write(DSI_CMD2_BK1_VRHS, 0x65) dc.dsi_write(DSI_CMD2_BK1_VCOM, 0x34) dc.dsi_write(DSI_CMD2_BK1_VGHSS, 0x87) dc.dsi_write(DSI_CMD2_BK1_TESTCMD, 0x80) dc.dsi_write(DSI_CMD2_BK1_VGLS, 0x49) dc.dsi_write(DSI_CMD2_BK1_PWCTLR1, 0x85) dc.dsi_write(DSI_CMD2_BK1_PWCTLR2, 0x20) dc.dsi_write(DSI_CMD2_BK1_DGMLUTR, 0x10) dc.dsi_write(DSI_CMD2_BK1_SPD1, 0x78) dc.dsi_write(DSI_CMD2_BK1_SPD2, 0x78) dc.dsi_write(DSI_CMD2_BK1_MIPISET1, 0x88) time.sleep_ms(100) # GIP settings dc.dsi_write(DSI_CMD2_BK1_SECTRL, b"\x00\x00\x02") dc.dsi_write( DSI_CMD2_BK1_NRCTRL, b"\x08\x00\x0A\x00\x07\x00\x09\x00\x00\x33\x33" ) dc.dsi_write( DSI_CMD2_BK1_SRPCTRL, b"\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", ) dc.dsi_write(DSI_CMD2_BK1_CCCTRL, b"\x00\x00\x33\x33") dc.dsi_write(DSI_CMD2_BK1_SKCTRL, b"\x44\x44") dc.dsi_write( 0xE5, b"\x0E\x60\xA0\xa0\x10\x60\xA0\xA0\x0A\x60\xA0\xA0\x0C\x60\xA0\xA0" ) dc.dsi_write(0xE6, b"\x00\x00\x33\x33") dc.dsi_write(0xE7, b"\x44\x44") dc.dsi_write( 0xE8, b"\x0D\x60\xA0\xA0\x0F\x60\xA0\xA0\x09\x60\xA0\xA0\x0B\x60\xA0\xA0" ) dc.dsi_write(0xEB, b"\x02\x01\xE4\xE4\x44\x00\x40") dc.dsi_write(0xEC, b"\x02\x01") dc.dsi_write( 0xED, b"\xAB\x89\x76\x54\x01\xFF\xFF\xFF\xFF\xFF\xFF\x10\x45\x67\x98\xBA" ) dc.dsi_write(DSI_CMD2_BKX_SEL, b"\x77\x01\x00\x00\x00") time.sleep_ms(10) dc.dsi_write(DCS_SET_DISPLAY_ON, dcs=True) time.sleep_ms(200) def read_id(self): return self.dc.dsi_read(0x04, 3)